Home / 188,262.11-259,802.04-103,384.55

Finding the Fourth Proportional to 188,262.11, 259,802.04 and 103,384.55

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Solution

The fourth proportional to 188,262.11, 259,802.04 and 103,384.55 is: 142,670.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,262.11 : 259,802.04 = 103,384.55 : x
  2. Step 2: Convert to fraction form
    188,262.11/259,802.04 = 103,384.55/x
  3. Step 3: Cross multiply
    188,262.11x = 259,802.04 × 103,384.55
  4. Step 4: Simplify right side
    188,262.11x = 26,859,516,994.48
  5. Step 5: Solve for x
    x = 26,859,516,994.48/188,262.11
  6. Step 6: Final answer
    x = 142,670.86

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.